Ski binding



FIG. 1 is a perspective view of a ski binding, seen from the front and left side thereof, showing my new design;

FIG. 2 is a perspective view, seen from the rear and left side thereof;

FIG. 3 is a top view thereof; and,

FIG. 4 is a left side view thereof, the right side being a mirror image of the left side. 

I claim the ornamental design for a ski binding, as shown and described. 